Trunk not openning

Has to go on a scanner to see what isn't working. The control module could be receiving the signal. This could be the controller or a bad wire. No communications between computers. Even doors have computers in them.

You may be able to unlock the trunk from the door lock pump under the back seat. Remove the rear seat bottom and the insulation from the right side. You'll see the battery and a foam box. The door lock pump (PSE) is in the foam box. You need to remove the vacuum line for the trunk latch (labeled RTR or RHR on the PSE pump) and apply some air pressure to it to unlock the trunk. You should then be able to open the trunk normally, unless the trunk lock key tumbler is in the lock position, then you need a key to get in.

Have you tried replacing the battery in it?

Manual for 320Here is the documentation for coupe. Go to page 96 or search index. The trunk release is on the drivers door, lower two buttons.

YOU CAN USE THE BLADE KEY TO OPEN THE TRUNK.LOOK ABOVE THE LICENSE PLATE TO THE RIGHT.YOU SHOULD HAVE A KEY HOLE.INSERT KEY,TURN,THEN PUSH.

it's possibly faulty door lock, some time can be broken door handle first check door handle and if it's not broken faulty door lock, need to replace door lock, is this information helped you?

Isn't there botton somewere on the door or left lower conner of dashboard to open trank remotely?

trunk key locked in trunk

I purchased a MB CLK 320 and set the radio frequency and successfully put the freq in memory, however, the radio blinks tthe freq. Is this normal or do I have to enter another key to stop the radio from blinking?
Ed
Massachusetts

Hi, The battery is located in the trunk, under the trunk mat.